1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.text.style;
18
19import android.content.Context;
20import android.graphics.Bitmap;
21import android.graphics.BitmapFactory;
22import android.graphics.drawable.BitmapDrawable;
23import android.graphics.drawable.Drawable;
24import android.net.Uri;
25import android.util.Log;
26
27import java.io.InputStream;
28
29public class ImageSpan extends DynamicDrawableSpan {
30    private Drawable mDrawable;
31    private Uri mContentUri;
32    private int mResourceId;
33    private Context mContext;
34    private String mSource;
35
36    /**
37     * @deprecated Use {@link #ImageSpan(Context, Bitmap)} instead.
38     */
39    @Deprecated
40    public ImageSpan(Bitmap b) {
41        this(null, b, ALIGN_BOTTOM);
42    }
43
44    /**
45     * @deprecated Use {@link #ImageSpan(Context, Bitmap, int) instead.
46     */
47    @Deprecated
48    public ImageSpan(Bitmap b, int verticalAlignment) {
49        this(null, b, verticalAlignment);
50    }
51
52    public ImageSpan(Context context, Bitmap b) {
53        this(context, b, ALIGN_BOTTOM);
54    }
55
56    /**
57     * @param verticalAlignment one of {@link DynamicDrawableSpan#ALIGN_BOTTOM} or
58     * {@link DynamicDrawableSpan#ALIGN_BASELINE}.
59     */
60    public ImageSpan(Context context, Bitmap b, int verticalAlignment) {
61        super(verticalAlignment);
62        mContext = context;
63        mDrawable = context != null
64                ? new BitmapDrawable(context.getResources(), b)
65                : new BitmapDrawable(b);
66        int width = mDrawable.getIntrinsicWidth();
67        int height = mDrawable.getIntrinsicHeight();
68        mDrawable.setBounds(0, 0, width > 0 ? width : 0, height > 0 ? height : 0);
69    }
70
71    public ImageSpan(Drawable d) {
72        this(d, ALIGN_BOTTOM);
73    }
74
75    /**
76     * @param verticalAlignment one of {@link DynamicDrawableSpan#ALIGN_BOTTOM} or
77     * {@link DynamicDrawableSpan#ALIGN_BASELINE}.
78     */
79    public ImageSpan(Drawable d, int verticalAlignment) {
80        super(verticalAlignment);
81        mDrawable = d;
82    }
83
84    public ImageSpan(Drawable d, String source) {
85        this(d, source, ALIGN_BOTTOM);
86    }
87
88    /**
89     * @param verticalAlignment one of {@link DynamicDrawableSpan#ALIGN_BOTTOM} or
90     * {@link DynamicDrawableSpan#ALIGN_BASELINE}.
91     */
92    public ImageSpan(Drawable d, String source, int verticalAlignment) {
93        super(verticalAlignment);
94        mDrawable = d;
95        mSource = source;
96    }
97
98    public ImageSpan(Context context, Uri uri) {
99        this(context, uri, ALIGN_BOTTOM);
100    }
101
102    /**
103     * @param verticalAlignment one of {@link DynamicDrawableSpan#ALIGN_BOTTOM} or
104     * {@link DynamicDrawableSpan#ALIGN_BASELINE}.
105     */
106    public ImageSpan(Context context, Uri uri, int verticalAlignment) {
107        super(verticalAlignment);
108        mContext = context;
109        mContentUri = uri;
110        mSource = uri.toString();
111    }
112
113    public ImageSpan(Context context, int resourceId) {
114        this(context, resourceId, ALIGN_BOTTOM);
115    }
116
117    /**
118     * @param verticalAlignment one of {@link DynamicDrawableSpan#ALIGN_BOTTOM} or
119     * {@link DynamicDrawableSpan#ALIGN_BASELINE}.
120     */
121    public ImageSpan(Context context, int resourceId, int verticalAlignment) {
122        super(verticalAlignment);
123        mContext = context;
124        mResourceId = resourceId;
125    }
126
127    @Override
128    public Drawable getDrawable() {
129        Drawable drawable = null;
130
131        if (mDrawable != null) {
132            drawable = mDrawable;
133        } else  if (mContentUri != null) {
134            Bitmap bitmap = null;
135            try {
136                InputStream is = mContext.getContentResolver().openInputStream(
137                        mContentUri);
138                bitmap = BitmapFactory.decodeStream(is);
139                drawable = new BitmapDrawable(mContext.getResources(), bitmap);
140                drawable.setBounds(0, 0, drawable.getIntrinsicWidth(),
141                        drawable.getIntrinsicHeight());
142                is.close();
143            } catch (Exception e) {
144                Log.e("sms", "Failed to loaded content " + mContentUri, e);
145            }
146        } else {
147            try {
148                drawable = mContext.getResources().getDrawable(mResourceId);
149                drawable.setBounds(0, 0, drawable.getIntrinsicWidth(),
150                        drawable.getIntrinsicHeight());
151            } catch (Exception e) {
152                Log.e("sms", "Unable to find resource: " + mResourceId);
153            }
154        }
155
156        return drawable;
157    }
158
159    /**
160     * Returns the source string that was saved during construction.
161     */
162    public String getSource() {
163        return mSource;
164    }
165
166}
167